Monsanto operated a “fusion center” to monitor and discredit journalists and activists, and targeted a reporter who wrote a critical book on the company, documents reveal. The agrochemical corporation also investigated the singer Neil Young and wrote an internal memo on his social media activity and music.

The records reviewed by the Guardian show Monsanto adopted a multi-pronged strategy to target Carey Gillam, a Reuters journalist who investigated the company’s weedkiller and its links to cancer. Monsanto, now owned by the German pharmaceutical corporation Bayer, also monitored a not-for-profit food research organization through its “intelligence fusion center”, a term that the FBI and other law enforcement agencies use for operations focused on surveillance and terrorism.

The documents, mostly from 2015 to 2017, were disclosed as part of an ongoing court battle on the health hazards of the company’s Roundup weedkiller…